1200010111222 has 16 divisors (see below), whose sum is σ = 1979722084032. Its totient is φ = 542066760000.

The previous prime is 1200010111219. The next prime is 1200010111229. The reversal of 1200010111222 is 2221110100021.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200010111229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491001279 + ... + 491003722.

It is an arithmetic number, because the mean of its divisors is an integer number (123732630252).

Almost surely, 2^{1200010111222} is an apocalyptic number.

1200010111222 is a deficient number, since it is larger than the sum of its proper divisors (779711972810).

1200010111222 is a wasteful number, since it uses less digits than its factorization.

1200010111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982005063.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1200010111222 its reverse (2221110100021), we get a palindrome (3421120211243).

The spelling of 1200010111222 in words is "one trillion, two hundred billion, ten million, one hundred eleven thousand, two hundred twenty-two".